Washington State University Tri-Cities, Center for Bioproducts and Bioenergy (CBB), Bioproducts, Sciences and Engineering Laboratory (BSEL) sciences, Richland, Washington 99354, USA.
Bioresour Technol. 2012 May;112:285-92. doi: 10.1016/j.biortech.2012.01.162. Epub 2012 Feb 14.
Efficient and high yield production of xylooligosaccharides, arabinooligosaccharide and mannooligosaccharides from biomasses is a significant boost to the nutraceutical and pharmaceutical industry. These organic compounds, also known as prebiotics, promote the growth of intestinal probiotic microorganisms thus improving the hosts' overall immune system. This work aimed at designing a thermochemical pretreatment of biomasses leading to production of high prebiotic yields and assessing the liquor quality based on resultant oligomer-monomer constituents. Four biomasses, namely Miscanthus sinensis, Panicum virgatum, Calamagrostis acutiflora and Bagasse, each having a dry weight xylan content of ≥ 20% were used. Identification and quantification using HPLC and ion chromatography systems showed xylooligomer yields of 65.0%, 84.2%, 87.9% and 92.3%, respectively. The xylooligomers also showed a degree of polymerization ranging from 2 to 25. These results demonstrate the potential of a low cost, pretreatment process of biomasses which may be suitable for a commercial scale production of prebiotics.
高效、高产地从生物质中生产木低聚糖、阿拉伯低聚糖和甘露低聚糖，是营养保健品和制药行业的重大推动因素。这些有机化合物，也被称为益生元，能够促进肠道益生菌的生长，从而改善宿主的整体免疫系统。本工作旨在设计一种热化学预处理生物质的方法，以生产高产量的益生元，并根据所得低聚物-单体成分评估蒸煮液的质量。使用了四种生物质，分别是荻、柳枝稷、粗茎早熟禾和甘蔗渣，它们的干重木聚糖含量均≥20%。使用高效液相色谱和离子色谱系统进行鉴定和定量分析，结果显示木低聚糖的得率分别为 65.0%、84.2%、87.9%和 92.3%。木低聚糖的聚合度范围也从 2 到 25。这些结果表明，该预处理方法具有低成本、适合大规模商业化生产益生元的潜力。
